Abstract: The present invention relates to an electric circuit having a transformer capable of functioning as a buffer inductor, and a magnetic stimulator using the transformer. The electric circuit of the present invention includes a power supply unit, and rectification means for rectifying current from the power supply unit. A transformer has an inductor on a primary side connected to the power supply unit. A capacitor is connected to an inductor on a secondary side of the transformer. Reverse flow prevention means is connected in series between the capacitor and the transformer to prevent charges stored in the capacitor from reversely flowing toward the transformer. A discharge inductor receives charges stored in the capacitor as discharge current and forms a magnetic field. First switching means turns on or off flow of the discharge current that flows in one direction. Bypass means causes current to flow in one direction.

Abstract: Disclosed is a method for reconstructing an X-ray CT (computerized tomography) image. The method includes acquiring projection data by means of irradiation of X-rays on a target object at a position close to an X-ray generator such that a portion of the target object including a local region of interest exists within a range of irradiation angles of X-rays, calculating virtual projection data on the assumption that the X-rays are irradiated on the entire target object at the close position, based on projection data acquired through irradiation of the X-rays on the entire target object at a position where the entire target object exists within the range of irradiation angles of X-rays, combining the virtual projection data on the entire target object except data on the local region of interest with the projection data acquired at the position close to the X-ray generator, and reconstructing the combined projection data.

Abstract: An apparatus for medical treatment is provided, which can reduce the load of signal processing and allows the patient to recognize the state of his/her muscular contraction more easily. The apparatus for medical treatment being operatively coupled to at least one electrode adapted to be contacted to a body portion or inserted into a body cavity, comprises: an EMG signal processor for performing a signal processing related to an EMG signal and including an envelope detector for receiving the EMG signal originated from the electrodes, and for producing an EMG envelope signal; a display unit for displaying information related to a medical treatment based on the EMG envelope signal; an operation unit; a memory for storing an treatment related data including the training goal waveform information; a stimulation signal generator for generating a stimulation signal; a main controller for controlling the operation of the above elements.

Abstract: An apparatus for medical treatment is provided, which can reduce the load of signal processing and allows the patient to recognize the state of his/her muscular contraction more easily. The apparatus for medical treatment being operatively coupled to at least one electrode adapted to be contacted to a body portion or inserted into a body cavity, comprises: an EMG signal processor for performing a signal processing related to an EMG signal and including an envelope detector for receiving the EMG signal originated from the electrodes, and for producing an EMG envelope signal; a display unit for displaying information related to a medical treatment based on the EMG envelope signal; an operation unit; a memory for storing an treatment related data including the training goal waveform information; a stimulation signal generator for generating a stimulation signal; a main controller for controlling the operation of the above elements.

Abstract: An apparatus for medical treatment is provided, which can reduce the load of signal processing and allows the patient to recognize the state of his/her muscular contraction more easily. The apparatus for medical treatment being operatively coupled to at least one electrode adapted to be contacted to a body portion or inserted into a body cavity, comprises: an EMG signal processor for performing a signal processing related to an EMG signal and including an envelope detector for receiving the EMG signal originated from the electrodes, and for producing an EMG envelope signal; a display unit for displaying information related to a medical treatment based on the EMG envelope signal; an operation unit; a memory for storing an treatment related data including the training goal waveform information; a stimulation signal generator for generating a stimulation signal; a main controller for controlling the operation of the above elements.

Abstract: An electrode for insertion into a body cavity during medical treatment, for example, urinary incontinence treatment, may be inserted into a body cavity and used in contact with a muscular surface, and through which at least one electrical signal is applied to the muscular surface under a control of a controller and at least one EMG signal is detected from the muscular surface.

Abstract: A magnetic resonance imaging (MRI) system includes a computer for performing overall control and signal processing, a pulse generator for generating a predetermined RF pulse signal and a gradient field pulse signal having variable intensities, a main magnet for generating a static magnetic field, a gradient field coil having a cylindrical dish-like structure surrounding a magnetic pole of the main magnet for generating a gradient field based on the gradient field pulse signal, an RF coil for transmitting a RF field according to the RF pulse signal to an imaging object and receiving MR signals from the imaging object, and an analog-to-digital converter for converting the MR signals from the RF coil into digital signals and outputting the converted digital signals to the computer.